The four points (−2, 5), (−2, −1), (7, −1), and (3, 5) are the vertices of a polygon. what is the area, in square units, of this polygon?

Asalad dressing recipe calls for 1 teaspoon of vinegar and three tablespoons of olive oil to only make 1/3 of the recipe for a single portion how much of each ingredient would you need